Ventilator



Dec. 18, 1928.

J. P. GLASER VENTILATOR Filed D90. 11, 1926 a h w $2 2,,

A TTORNEY.

Patented Dec. 18, 1928.

UNITED] STATES rattan PATENT OFFICE. I

JOSEPH GLASER. OF DETROIT, MICHIGAN, ASSIGNGB T0 CI-IAMBlEllEtLIN METALWEATHER STRIP COMPANY, 015 DETROIT, MICHIGAN, A CORPORATION OF MICHIGAN.

VENTILATOR.

' Application filed December 11, 1926. Serial No. 154,061.

This invention relates to ventilators and the object of the invention isto provide a ventilator which will shut out light but which will allowair to pass readily therethrough.

Another object of the invention is to pro cide a ventilator of thecharacter cescribed which may be opened or closed without admittinglight.

A further object of the invention is to provide a ventilator throughwhich sound will not readily pass and through which the occupant-s of aroom cannot be seen.

These objects and the several novel features of the invention arehereinafte' more fully described and claimed and the preferred form ofconstruction by which these objects are attained is. shown in theaccompanying drawings in which-i Fig. 1 is an elevation of a door withone of the panels replaced with my improved ven- V tilator.

Fig. 2 illustrates the ventilator as used in placeof a transom.

Fig. 3 is an enlarged elevation of a portion of the ventilator at oneend.

F 1g. 4 IS a sectlon taken on line 4-4 of TI" 3 11g. V

Fig. 5 1s a section takenon hne 55 of Fig. 3.

As shown in Figs. 1 and 2 a perforated metal plate 1 1S provided whichis movable horizontally in either direction to open or close theventilator. As shown 111 Fig. 4 a space 2 is provided in which thisplate ,1 is movable for opening or closing the ventilator. A series ofplates 3 are provided as shown in Fig. 4 which are each formed toprovide a parallel offset portion 4, the plates each having an angularportion 5 between theportions 3 and 4. These plates are secured togetherin assembled relation in the frame 8 so as to provide spaces 6 and 7between the plates on opposite sides. v

The frame 8 with the plates secured therein in assembled relation issecured in the panel of a door or in place of a transom as shown inFigs. 1 and 2. In order to prevent the plates from binding so that theplate 1 cannot be moved the frame member-8 is slightly wider than thestationary and movable plates therein as will be understood from Fig. 5.As will be understood from Fig. 3 when the plate 1 is moved to the rightthe perforations 9' therein are moved from the position shown in fulllines in Fig. 3 to that shown in dotted lines. As will be understoodfrom Fig. 4 this movement of the plate 1 moves the apertures 9v behindthe offset portions 4 of the plates 3 so that the ventilator is closedand no air can pass therethrough. When the ventilator is in the openposition, shown in Fig. 4 air can pass througn the apertures l andbetween the plate portions 3 and 4 and through the openlights are leftburning all night as this ventilator prevents any light from enteringthe room through the ventilator. Also due to the circuitous path whichthe air must take in passing between the plates of the ventilator soundswill not readily pass through the ventilator. With this arrangement theoccupant of the room cannot be seen and at the same time the room willbe properly ventilated. If desired a knob 10 may be secured to thecenter of the plate 1. by means of which the said plate may be readilymoved to the opened or closed position.

By utilizing this ventilator in place of a transom a considerable savingis efiected as no glass is needed and the usual hardware for hinging andopening the transom is eliminated.

From the foregoing description it becomes evident that the device isvery simple and efiicient in operation, will not easily get out oforder, is composed of sheet metal parts and is of consequent lowmanufacturing cost and provides a device which accomplishes the objectsdescribed.

Having thus fully described my invention, its utility and mode ofoperation, what I claim and desire to secure by Letters Patent of theUnited States is 1. A ventilator comprising a frame member practically Lshaped in cross section and substantially rectangular in form, a secondframe member rabbeted in one face at the inner edge to receive the firstframe, means for holding the L shaped frame in the rabbet, the assembledframes providing a channel in the inner periphery, a series of met-a1plates each offset in substantially its central portion providingparallel spaced portions of substantially equal length, the series ofplates being supported in the trainechannel and so relatively arrangedas to'provide spaces between the plates, the edge of one plate beingspaced relative to the aligned portion of an .adjacentplate providingopenings to the said spaces on opposite sides of the assembled plates athird plate supported in the said frame channel on one side of theassembled plates and having apertures registerable with the said,openings to said spaces, said third plate being slidable in the channelin face contact with the plate surfaces to bring the apertures into orout of registration with the said openings whereby the same may beopened or closed,

2. A ventilator comprising aframe member L shaped in cross section andsubstantially rectangular in form, a second frame member having a rabbetformed in one face adjacent the inner ed ge in which the first frame maybe positioned, means for securing the first-frame therein, the assembledframes providing a channel in the inner periphery defining the frameopening, a series of metal plates supported at opposite ends'in theoppbsitely disassembled plates, a third plate having a width platesequal to the l ngthol the said series supported in the channel contactwit. face of the assembled plates and being less in length than thelength between the bottoms of the channels of side portions ofthesesembled frames permitting movement of the third platelongitudinally in the channel said third plate having apertures broughtinto or out of registration with the channel openings to open or closethe same.

In testimony whereof I sign this specification.

JOSEPH P. GLASEB.

